Since Esonic is a budget brand, official support pages can be hard to find. You can find compatible drivers at these locations:
Before downloading, verify which chip your specific board uses. While the is the standard, some variations of the G41 series may use the VIA VT1705 codec. esonic g41 motherboard audio drivers for windows 10 64 bit
Intel G41 Drivers Download for Windows 10, 8.1, 7, Vista, XP Since Esonic is a budget brand, official support